Erwin Gahleitner

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid with audio path duct extension element, and extension e...
- Patent number 4,418,787
- Issue date Dec 6, 1983
- Robert Bosch GmbH
- Albert Eggert
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Modular hearing aid
- Patent number 4,395,601
- Issue date Jul 26, 1983
- Robert Bosch GmbH
- Wolfgang Kopke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE